diff --git a/CHANGES.txt b/CHANGES.txt
index ebeb438956..3535b5f3c1 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -118,6 +118,7 @@ Merged from 3.0:
    for a table that's in system_schema.tables (CASSANDRA-13180)
  * Nodetool upgradesstables/scrub/compact ignores system tables (CASSANDRA-13410)
 Merged from 2.2:
+ * Fix weightedSize() for row-cache reported by JMX and NodeTool (CASSANDRA-13393)
  * Fix JVM metric names (CASSANDRA-13103)
  * Honor truststore-password parameter in cassandra-stress (CASSANDRA-12773)
  * Discard in-flight shadow round responses (CASSANDRA-12653)
diff --git a/src/java/org/apache/cassandra/cache/OHCProvider.java b/src/java/org/apache/cassandra/cache/OHCProvider.java
index eefb0f4cb3..afdc872f33 100644
--- a/src/java/org/apache/cassandra/cache/OHCProvider.java
+++ b/src/java/org/apache/cassandra/cache/OHCProvider.java
@@ -96,7 +96,7 @@ public class OHCProvider implements CacheProvider<RowCacheKey, IRowCacheEntry>
 
         public long weightedSize()
         {
-            return ohCache.size();
+            return ohCache.memUsed();
         }
 
         public void clear()